<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>{{ title }}</title>
</head>
<body>
    <h1>hi</h1>
    <p>{{ msg }}</p>
    <P>{{ num+10 }}</P>
    <!-- <img src="../static/OIP.jpg"> -->
    <img src="{{static_url('OIP.jpg')}}">
    <img src="{{static_url('OIP.jpg')}}">
</body>
</html>